New California DUI Safety Laws Take Effect, Extending Ignition Interlock Program

The California Department of Motor Vehicles is reminding drivers about new traffic safety laws that took effect at the start of the new year, including a major update affecting DUI offenders. Assembly Bill 366 extends California’s statewide ignition interlock device (IID) program through January 1, 2033.

Under the law, certain drivers convicted of DUI offenses involving alcohol, or a combination of alcohol and drugs, will be required to install a breath-activated ignition interlock device in their vehicles. The device prevents the car from starting if alcohol is detected on the driver’s breath.

State officials say the program is designed to improve roadway safety by reducing repeat DUI offenses and protecting other motorists. According to the DMV, impaired driving remains a leading cause of serious crashes across California, making the extended program a key step toward preventing alcohol-related accidents.

The DMV encourages drivers to familiarize themselves with the updated laws and emphasizes that the IID program is focused on keeping both drivers and the public safe on California roads.